A mixer cover access door with auxiliary air blowing cleaning function

Abstract

This utility model relates to the technical field of concrete mixing equipment, specifically to a mixer cover maintenance door with auxiliary air-blowing cleaning function; it includes a maintenance door, a sealing strip, a door frame, and a one-way valve. The maintenance door is located on the cover of the mixing host, and a sealing strip is provided on the maintenance door. A door frame is located inside the maintenance door, and a one-way valve leading to the outside of the maintenance door is located at the bottom of the door frame. The maintenance door is a switchable door body located on both sides of the mixer cover. A sealing strip is provided around the maintenance door, and a handle is provided on the outside of the maintenance door. The sealing strip is made of rubber and is located around the maintenance door, sealing it. The door frame is a frame-shaped structure formed by welding the ends of four pipes together. Air vents are provided on the door frame facing around the maintenance door, and the air vents are evenly distributed on the four pipes. The mixer cover maintenance door with auxiliary air-blowing cleaning function designed in this utility model prevents dust accumulation, avoids clogging of the maintenance door, and improves work efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of concrete mixing equipment, specifically to a mixer cover maintenance door with auxiliary air blowing cleaning function. Background Technology

[0002] In the context of the continuous development of the construction industry, ready-mixed concrete batching plants have been widely used. These plants typically employ twin-shaft forced concrete mixers with an open top. To prevent dust generation during material transfer from the weighing scale and other enclosed spaces within the mixer during production, and to prevent material splashing and personnel falls during mixing, a cover is usually added to the top of the mixer. To facilitate maintenance personnel access, a closable access door is typically installed on the side of the cover. However, existing access doors often have embedded sealing strips within the door frame. This structure has corners that easily allow dust to accumulate inside the cover, eventually clogging the access door and preventing entry.

[0003] Therefore, there is an urgent need to design a mixer cover maintenance door with auxiliary air blowing cleaning function to solve the problem of the maintenance door being blocked and unable to be opened for maintenance. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a mixer cover maintenance door with auxiliary air blowing cleaning function.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a mixer cover inspection door with auxiliary air blowing cleaning function, including an inspection door, a door frame, a sealing strip and a one-way valve. The inspection door is hinged to the cover of the mixer host and sealed at the inspection port of the cover. A door frame is fixedly provided on the edge of the inspection port. The inspection door cover is located on the outside of the door frame. A one-way valve leading to the outside of the inspection door is provided at the bottom of the door frame.

[0006] Specifically, the inspection door is a switchable door located on both sides of the mixer cover, with a sealing strip around the inside of the inspection door and a handle on the outside of the inspection door.

[0007] Specifically, the inspection door is equipped with a sealing strip made of rubber. The sealing strip is located around the perimeter of the inspection door and in contact with the door frame, and the sealing strip seals the inspection door.

[0008] Specifically, the door frame is welded to the cover at the inspection port. The door frame adopts a ring-shaped square tube structure. Multiple air vents are provided on the inner side of the door frame, and an air pipe is connected to the outer side of the door frame. A one-way valve is installed on the air pipe.

[0009] Specifically, the vent is located on the door frame facing the inside of the mixer.

[0010] Specifically, the one-way valve is located outside the cover of the mixing host, the mixing host is equipped with an exhaust port, the exhaust port is sealed to a negative pressure dust collector through a pipe, and the negative pressure dust collector is installed on the outside of the mixing host.

[0011] This utility model has the following beneficial effects:

[0012] The mixer cover inspection door with auxiliary air blowing cleaning function designed in this utility model has a negative pressure dust collector. Because the mixing station creates negative pressure inside the main unit cover, there will be a continuous airflow flowing into the cover through the air hole of the door frame, which constantly washes the area near the inspection door and prevents dust from accumulating. Attached Figure Description

[0013] Figure 1 This is a structural diagram of the access door for a mixer cover with auxiliary air blowing cleaning function.

[0014] Figure 2 The mixer cover and access door with auxiliary air blowing cleaning function is installed on the mixer.

[0015] In the diagram: 1-Inspection door; 2-Sealing strip; 3-Door frame; 3.1-Ventilation hole; 4-One-way valve; 5-Mixer cover. Detailed Implementation

[0016] The technical solutions of the present utility model will be described in further detail below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0017] like Figures 1-2 As shown, a mixer cover maintenance door with auxiliary air blowing cleaning function includes a maintenance door 1, a door frame 3, a sealing strip 2 and a one-way valve 4. The maintenance door 1 is located on the cover of the mixer host. The maintenance door 1 is provided with a sealing strip 2. The maintenance door 1 is provided with a door frame 3 inside. The bottom of the door frame 3 is provided with a one-way valve 4 leading to the outside of the maintenance door 1.

[0018] Inspection door 1 is located on both sides of mixer cover 5. Inspection door 1 is equipped with sealing strip 2 and handle. Inspection door 1 is used to open during maintenance to allow maintenance personnel to enter for maintenance. Sealing strip 2 is located on both sides of inspection door 1 and is used to seal inspection door 1 to prevent air leakage.

[0019] The door frame 3 consists of pipes located on both sides inside the inspection door 1. The door frame 3 is equipped with an air outlet 3.1 facing the inside of the mixer. The outside of the door frame 3 is connected to a one-way valve 4 via an air pipe. The air outlet 3.1 is used for air discharge. The door frame 3 is used to blow air into the inspection door 1 through the air outlet 3.1 to clean up dust and prevent dust accumulation from clogging the inspection door 1.

[0020] One-way valve 4 is located outside the inspection door 1 and the mixer cover 5. One-way valve 4 is connected to the outside of the door frame 3 through an air pipe. One-way valve 4 can only have air inlet at one end and air outlet at the other end. The air inlet end of one-way valve 4 points to the atmosphere, and the air outlet end of one-way valve 4 is connected to the air pipe. The mixer itself is equipped with a negative pressure dust collector. The negative pressure dust collector creates a negative pressure state inside the mixer, allowing one-way valve 4 to draw air in and blow it into the mixer through the door frame 3 and the air outlet 3.1.

[0021] The working principle of a mixer cover 5 and access door 1 with auxiliary air blowing cleaning function:

[0022] The door frame 3 is made of a hollow tube with holes. The door frame 3 is connected to the outside atmosphere of the cover through a one-way valve 4. The inside of the cover is connected to the negative pressure dust collector of the mixing plant. When the maintenance door 1 is closed, the door body and the embedded sealing strip 2 together with the door frame 3 and the cover form a closed space that is isolated from the outside. When the negative pressure dust collector is working, the air pressure inside the cover is lower than the outside atmospheric pressure. The one-way valve 4 is opened, and the outside air enters the inner cavity of the door frame 3 through the one-way valve 4. The air flows through the air holes arranged on the door frame 3 and enters the cover and then enters the dust collection system. Because the negative pressure dust collector creates negative pressure inside the main unit cover of the mixing plant, there will be a continuous airflow from the air holes of the door frame 3 into the cover, constantly flushing the dust near the maintenance door 1 and preventing dust from accumulating.

[0023] This utility model is not limited to the above-described embodiments. Anyone should know that any structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model.

[0024] The technologies, shapes, and structures not described in detail in this utility model are all known technologies.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mixer cover inspection door with auxiliary air-blowing cleaning function, characterized in that, It includes an inspection door, a door frame, a sealing strip, and a one-way valve. The inspection door is hinged to the cover of the mixing host and is sealed at the inspection port of the cover. A door frame is fixedly provided at the edge of the inspection port, and the inspection door cover is located on the outside of the door frame. A one-way valve leading to the outside of the inspection door is provided at the lower part of the door frame.

2. The mixer cover inspection door with auxiliary air blowing cleaning function according to claim 1, characterized in that, The inspection door is a switchable door located on both sides of the mixer cover. The inner side of the inspection door is equipped with a sealing strip, and the outer side of the inspection door is equipped with a handle.

3. The mixer cover inspection door with auxiliary air blowing cleaning function according to claim 1, characterized in that, The inspection door is equipped with a sealing strip made of rubber. The sealing strip is located around the perimeter of the inspection door and in contact with the door frame, and the sealing strip seals the inspection door.

4. The mixer cover inspection door with auxiliary air blowing cleaning function according to claim 1, characterized in that, The door frame is welded to the cover at the inspection port. The door frame adopts a ring-shaped square tube structure. Multiple air vents are provided on the inner side of the door frame, and an air pipe is connected to the outer side of the door frame. A one-way valve is installed on the air pipe.

5. The mixer cover inspection door with auxiliary air blowing cleaning function according to claim 4, characterized in that, The vent is located on the door frame facing the inside of the mixer.

6. The mixer cover inspection door with auxiliary air blowing cleaning function according to claim 1, characterized in that, The one-way valve is located outside the cover of the mixing host. The mixing host is equipped with an exhaust port, which is connected to a negative pressure dust collector via a sealed pipe. The negative pressure dust collector is installed on the outside of the mixing host.

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